• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. DEVICE FOR FILM DISTRIBUTION OF A LIQUID IN A VERTICAL HEAT EXCHANGER with a body having inlet and outlet nozzles of media and heat exchange tubes mounted on tube plates, containing a damper mounted on a support and hollow, covered from above, distributors, reinforced in the upper part of the whole, an entire unit, an entire body, an outlet cover, an outlet cover, an outlet cover, an overlay, and a hollow body. The lateral surface in its middle part is tangential holes, which are different in that, in order to ensure uniform distribution of the fluid, the distributors are placed with their heads The gas outlet windows are additionally made above the upper tube plate and on their side surface above the holes, and the support is made in the form of a lattice of parallel bars mounted on brackets and distributors resting on the edge, and the damper additionally contains a grid placed on the grid and located on the mesh layer nozzles. 2. A device according to claim 1, characterized in that the layer of the NACO charge has a height of 500-2000 mm. 3. The device according to claim 1, characterized in that the number of gas outlet windows is 2-8. 4. The device according to claim 1, characterized in that the normals to the gas outlet windows are located perpendicularly distribute the axes 1. saved 00
    公开号:SU1114353A3
    申请号:SU813285562
    申请日:1981-05-14
    公开日:1984-09-15
    发明作者:Лагана Винченцо
    申请人:Снампрогетти С.П.А. (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to liquid dispensers for film heat exchangers and can be used in the power industry.
    Known liquid distributor in heat exchangers, containing an insert in the form of a cone, placed along the axis of the pipe and having grooves adjacent to the base of the EO.
    The disadvantage of this distributor is the uneven distribution of the fluid in the pipe, as part of it falls down through the grooves, and part of it flows down the cone into the gap formed between the base of the cone and the surface of the pipe.
    The closest to the present invention is a device for film;: distribution of liquid in a vertical heat exchanger with a body having inlet and outlet nozzles and heat exchanger pipes fixed in tube plates, containing a damper mounted on a support and hollowed out top distributors fixed at the top of each heat exchange pipe and having on the side surface in the middle part of its tangential holes 2
    The disadvantage of this device is the uneven distribution of fluid through the pipes, since it is supplied along the periphery of the tube plate and there is a pressure drop across the fluid from the periphery to the center of the tube plate.
    The purpose of the invention is to provide p. liquid distribution
    This goal is achieved by the fact that in a device for film distribution of liquid in a vertical heat exchanger with a housing having inlet and outlet nozzles and heat exchange tubes fixed in a tube plate containing a damper mounted on a support and hollowed out top distributors fixed to the top each heat exchanger tube and tangential openings on the lateral surface in its middle part, the distributors are placed with their muffled ends above the upper tube plate, and at their The side surface above the holes is additionally made with gas opening windows, and the support is made in the form of a lattice of
    parallel bars mounted on brackets and supported on the edges of the distributors, the damper additionally contains a grid placed on the grid and located on the grid of the nozzle.
    In addition, the nozzle layer can have a height of 500–2000 mm, the number of gassing windows is 2–8, and the normals to the gas outlets are located perpendicular to the axis of the distributors.
    FIG. 1 shows schematically a heat exchanger with the proposed device for film distribution of liquid; in fig. 2 - heat exchange pipe with distributor; in fig. 3 prop soothing.
    A device for film distribution of the liquid is placed in the upper part of the vertical heat exchanger with the housing 1 having the nozzles of the inlet 2 and outlet 3, and heat exchanger pipes 6 fixed in the tube plates 4 and 5, and contains a damper in the form of a mesh 8, layer nozzles 9 and sides 10.
    In the upper part of each heat exchanger pipe 6, distributors 11 that are plugged from above are fixed, having tangential holes 12 on the side surface in its middle part and gas outlets 13 above holes 12 and support 7 in the form of a grid of parallel bars 14 mounted on brackets 15 and resting on the edges of the distributors 11. The housing 1 is equipped with a nozzle 16 for the removal of gases from the pipes 6.
    The layer of the nozzle 9 can have a height of 500-2000 mm, the number of gas outlets 13 can be 2-8, and the normals to gas outlets 13 can be located perpendicular to the axis of the distributors 11.
    The operation of the proposed device is carried out as follows.
    The working medium, for example, urea solution coming out of the urea synthesis reactor, through the inlet pipe 2 enters the device for film distribution of the liquid and through the shell 10, the nozzle layer 9, the grid 8 and the holes 12 of the distributors 11 is fed as a film to the inside surface of the pipes 6 Gray3111
    The medium is fed into the annular space. The urea solution is heated, and inert gases are released and some of the ammonia contained in the solution is evaporated. The gases rise upward and through the gassing ports 13 of the distributors 11 and the nozzle 16 to remove the gases from the heat exchanger. The gas outlets 13 create additional hydraulic resistance for incipient gases, and their optimal number in each distributor 11 is 2-8, and their normals should be located perpendicular to the axis of the distributors, which allows creating a hydraulic resistance in the range from 0.1 up to 2000 mm of water 34
    him a pillar The nozzle layer 9 consists of the usual elements used by the packed columns and for a more even distribution of the liquid.
    through pipes 6, its height is chosen in the range from 500 to 2000 mm. After treatment in the pipes 6, the urea solution is discharged from the heat exchanger through the nozzle 3 outlet.
    The bars 14 rest on the edges of the distributors 11, which prevents them from being pushed out with abrupt changes in pressure.
    (
    The proposed device ensures uniform distribution of the liquid and increases the reliability of the heat exchanger as a whole.
    Fig.Z
    11/3
    12

    12


    FIG. -Z
    //
    权利要求:
    Claims (1)
    [2]
    2. Copyright certificate of the USSR No. 638832, cl. F 28 D 3/04, 1977., 1. DEVICE FOR FILM DISTRIBUTION OF LIQUID IN A VERTICAL HEAT EXCHANGER with a housing having medium inlet and outlet pipes and heat exchanger pipes fixed in tube boards, containing a dampener mounted on a support and hollow, muffled distributors on top, reinforced in the upper part of each heat transfer tube and having tangential openings on its lateral surface in the middle part, characterized in that, in order to ensure uniform distribution of the liquid, the distributors are placed with their own gassed ends above the upper tube plate, and on their side surface above the openings, gas outlets are additionally made, and the support is made in the form of a parallel-bars grid mounted on brackets and resting on the edges of the distributors, and the damper further comprises a grid placed on the grid and located on mesh layer nozzles.
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    引用文献:
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    WO2006085792A1|2005-02-09|2006-08-17|Research & Design Institute Of Urea And Organic Synthesis Products, Otkrytoe Aktsionernoe Obschestvo|Vertical film-type heat exchanger|US2344560A|1941-12-26|1944-03-21|Palkin Samuel|Fractionating column and scrubbing tower|
    US2397347A|1943-08-30|1946-03-26|Oliver R Burkhart|Ice-making machine|
    US2545028A|1945-12-05|1951-03-13|George W Haldeman|Falling film heat exchanger|
    US2859021A|1955-03-28|1958-11-04|Union Carbide Corp|Gas absorber distribution|
    US3016067A|1960-08-11|1962-01-09|Henry Vogt Machine Company|Liquid distributing device|
    AT241199B|1963-07-02|1965-07-12|Robert Mayr|Device for the oxygenation of water, in particular for fish farming|
    US3385575A|1964-07-29|1968-05-28|Raymond C. Hall|Gas liquid contacting apparatus|
    US3406716A|1966-06-13|1968-10-22|Stearns Roger Corp|Distribution weir for falling-film evaporators|
    US3482947A|1966-07-14|1969-12-09|Procter & Gamble|Feed device for a film reactor|
    CS163411B3|1970-06-08|1975-09-15|
    IT1030930B|1974-12-20|1979-04-10|Sir Soc Italiana Resine Spa|PROCEDURE FOR THE DESALINATION OF SEA WATER AND BRACKISH WATER|
    IT1042794B|1975-09-26|1980-01-30|Snam Progetti|DISTRIBUTION OF LIQUID FOR THIN FILM TUBE BAND EQUIPMENT|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT22118/80A|IT1148829B|1980-05-16|1980-05-16|DEVICE FOR THE DISTRIBUTION OF LIQUID IN THE FORM OF FILM IN VERTICAL HEAT EXCHANGE EQUIPMENT|
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